Update: As of July 2020, Gentlent owns its own OID space under 126.96.36.199.4.1.56036 and will migrate to it.
Gentlent owns and assigns OID spaces through Tom Klein IT & Klein Ventures. Especially for some of our internal enterprise cloud-related products, verifiable object identifiers are required in order to make use of the whole functionality. They will be added to the enterprise's network space, SSL/TLS certificates, and more.
We are the owner of the /iso/org/dod/internet/private/enterprise/tomkleinit/* (188.8.131.52.4.1.51923.*) OID space which was officially assigned by the Internet Assigned Numbers Authority.
A full list of assigned OIDs and more information can be requested at firstname.lastname@example.org.